Astrobiology

The abstract in PubMed or at the publisher’s site is linked when available and will open in a new window. Tsuji R, Fujita R, Hayashi T, Sadaki S, Matsumoto T,

Archean Earth – Grok via Astrobiology.com The habitability of the early Earth was affected by various factors. We focus here on atmospheric oxygen (O2) and methane (CH4). O2 is essential

Comparison of planet radius distributions and radius–period diagrams across stellar age bins. Upper panels: Planet-radius histograms for four equally populated age bins, defined by the 25th, 50th, and 75th percentiles

ISO Short Wavelength Spectrometer (SWS) spectrum of the Galactic source, W33A, an extremely embedded high-mass young stellar object (Gibb et al. 2004). This source exhibits strong ice absorption features due

Surface of Mars – NASA Perseverance The Centro de Astrobiología (CAB), CSIC-INTA, has led a study published in Communications Earth and Environment, showing that if life had ever emerged on

ASGSR Technical Analysis Group Dear Colleagues, The ASGSR Governing Board is pleased to announce the establishment of the Gravitational and Space Research – Technical Analysis Group (GSR-TAG). The primary purpose

Paleopoles based on averages of sample Virtual Geomagnetic Poles (VGPs) rather than site VGPs. In this treatment, sample H component directions are each treated as sites that sample the field

A synthesized false color image of Venus using 283-nm and 365-nm images taken by UVI. Images are colorized as follows: 283 nm → blue; 365 nm → red; mixture of

The volume mixing ratios of key gases in the Hycean and sub-Neptune atmospheres, averaged across 0.1 – 10−5 bar to represent the expected abundances of photochemical products probed by transmission

Illustration of an exocomet transit. — astro-ph.EP Active small bodies in extrasolar systems, the extrasolar analogues of Solar System comets, provide insights into the orbital evolution and physical processes shaping